“October 4 marks the 50th anniversary of the launch of Sputnik. What do you think has been our greatest achievement in space since that time?”

Terrence Nelan: “The lunar landings. The International Space Station is a pretty close second.”

Carly Doherty: “The Hubble Space Telescope, and then fixing it.”

Lee McCoy: “Going to the moon.”

Irma Richards: “I always remember my mom’s excitement when we walked on the moon. I still like watching the shuttles take off.”

Amy Meador: “All the new technology and working with other countries. The international relations it fostered.”

Conor McCarthy: “The Hubble Telescope. It gave us so much information.”